Perhaps you should try some spelling variations:
ngan khoa » nganh khoa, nhan khoa, nhuan khoa
toc cach » hoc cach, toc sach, truoc cach
cach hoc » cach thuc, cach thoi, dich hoc
cuu long » cuu cong, cuu tong, cuu nang
long luc » dong luc, long cuc, long lich
luc ngan » luc nganh, luc nhan, luat ngan
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
nhan tao » nhan dan
hoc xa » hoc ma

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc cach hoc tap, nghien cuu long luc ngan khoa hoc xa hoi va ((nhan tai) or (nhan tao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc cach hoc tap, nghien cuu long luc ngan khoa hoc xa hoi va ((nhan tai) OR (nhan tao)).
• Adding a wildcard symbol may retrieve word variants: toc cach hoc tap, nghien cuu long luc ngan khoa hoc xa hoi va ((nhan tai) or (nhan tao))*.